Commit 7bc5a2b -- ACPI: Support _OSI("Darwin") correctly -- has
introduced an intermittent boot failure on an IvyBridge Macbook Pro 13
(MacBookPro10,2). The failure rate is around 12%. This was diagnosed
by doing a bisect with many boots for each kernel, then verifying
failure on 7bc5a2b, and then
discussion see https://bugs.launchpad.net/baltix/+bug/930447
Signed-off-by: Chris Bainbridge
---
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index bbe1b8b..97996aa 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -226,6 +226,12 @@ static void
On Tue, Feb 25, 2014 at 09:16:02AM -0800, H. Peter Anvin wrote:
> On 02/25/2014 08:26 AM, Dave Jones wrote:
> > On Tue, Feb 25, 2014 at 02:45:57AM -0800, H. Peter Anvin wrote:
> > > On 02/24/2014 10:01 PM, Chris Bainbridge wrote:
> > > > Pentium M is PAE capable b
On Mon, Mar 03, 2014 at 08:29:39PM +0100, Borislav Petkov wrote:
> On Mon, Mar 03, 2014 at 03:04:35PM +0700, Chris Bainbridge wrote:
> > On 3 March 2014 02:05, Roland Kletzing wrote:
> > > i would recommend adding the newly introduced param to
> > > Documentation/k
On Mon, Mar 03, 2014 at 09:04:19PM -0800, H. Peter Anvin wrote:
> forcepae is descriptive.
Back to forcepae.
Signed-off-by: Chris Bainbridge
---
diff --git a/Documentation/kernel-parameters.txt
b/Documentation/kernel-parameters.txt
index 580a60c..67755ea 100644
--- a/Documentation/ker
On 4 March 2014 17:44, Borislav Petkov wrote:
> On Tue, Mar 04, 2014 at 01:06:03PM +0700, Chris Bainbridge wrote:
>> On Mon, Mar 03, 2014 at 09:04:19PM -0800, H. Peter Anvin wrote:
>> > forcepae is descriptive.
>>
>> Back to forcepae.
>
> Ok, it looks ok to
On Wed, Feb 26, 2014 at 10:49:49AM -0500, Dave Jones wrote:
> On Wed, Feb 26, 2014 at 02:18:52PM +0100, Borislav Petkov wrote:
> > On Wed, Feb 26, 2014 at 07:12:59PM +0700, Chris Bainbridge wrote:
> > > @@ -226,6 +234,15 @@ static void intel_workarounds(str
lier versions of the Pentium M
> ( Older Dothans and the Banias core) do not have PAE support, officially.
>
> -Dennis.
Good point, patch updated to not show the warning if PAE is already
enabled.
Signed-off-by: Chris Bainbridge
---
diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpuchec
02:05, Roland Kletzing wrote:
> i would recommend adding the newly introduced param to
> Documentation/kernel-
> parameters.txt , though.
Done.
Signed-off-by: Chris Bainbridge
---
diff --git a/Documentation/kernel-parameters.txt
b/Documentation/kernel-parameters.txt
index b9e9bd8..388b5e9
From: Chris Bainbridge
Many Pentium M systems disable PAE but may have a functionally usable PAE
implementation. This adds the "forcepae" parameter which bypasses the boot
check for PAE, and sets the CPU as being PAE capable. Using this parameter
will taint the k
On 25 May 2016 at 08:31, Sedat Dilek wrote:
> Hi Daniel,
>
> with latest Linus Git I see this with my Intel SandyBridge GPU...
>
> [ 17.629014] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
> *ERROR* CPU pipe A FIFO underrun
> [ 17.630652] [drm:intel_set_pch_fifo_underrun_reporting [i915]]
andler.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=107191
Link: https://lkml.org/lkml/2015/11/6/776
Signed-off-by: Chris Bainbridge
---
drivers/acpi/sbshc.c | 26 +++---
1 file changed, 7 insertions(+), 19 deletions(-)
diff --git a/drivers/acpi/sbshc.c b/drivers/ac
This reverts commit 3349fb64b2927407017d970dd5c4daf3c5ad69f8.
After commit 8848d20cf09c ("ACPI / SMBus: Fix boot stalls / high CPU
caused by reentrant code") the delay is no longer necessary.
Signed-off-by: Chris Bainbridge
---
drivers/acpi/sbshc.c | 22 --
1 fi
of both buses.
Fixes: 638139eb95d2 ("usb: hub: allow to process more usb hub events in
parallel")
Signed-off-by: Chris Bainbridge
---
drivers/usb/core/hcd.c | 15 +--
drivers/usb/core/hub.c | 8
include/linux/usb.h | 3 +--
include/linux/usb/hcd.h | 1
0.00]
Signed-off-by: Chris Bainbridge
---
arch/x86/kernel/cpu/microcode/intel_lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/microcode/intel_lib.c
b/arch/x86/kernel/cpu/microcode/i
On Sat, Feb 27, 2016 at 06:51:18PM +0100, Borislav Petkov wrote:
> On Sat, Feb 27, 2016 at 11:01:47AM +0000, Chris Bainbridge wrote:
> > Checksum should be unsigned 32-bit otherwise the calculation overflows
> > resulting in undefined behaviour:
> &g
On Tue, Feb 23, 2016 at 02:18:22AM +, Zheng, Lv wrote:
>
> In fact, I don't understand what your report is.
> What did you mean by referring the following commit:
> > ACPICA: Events: Enhance acpi_ev_execute_reg_method() to ensure no _REG
> > evaluations can happen during OS early boot stag
On 5 February 2016 at 02:52, Zheng, Lv wrote:
>
> So you could wait for just several days to test it again.
> And report here if you can still see issues.
I didn't notice any revert last week, is there something specific that
I should test? I just noticed that there are graphical glitches in
Fire
USB ethernet devices stop responding when plugged in to USB3 XHCI ports
and flooded with incoming traffic. The usbnet layer seems to get -EPROTO
from the xhci driver. Nothing is usually logged in kernel when this
occurs, but with dyndebug on there are errors like:
ax88179_178a 4-1.1:1.0 et
On 5 May 2015 at 04:29, Yang Hongyang wrote:
> Any ideas?
https://bugzilla.kernel.org/show_bug.cgi?id=96771
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On Wed, Feb 10, 2016 at 07:13:38PM +0200, Mathias Nyman wrote:
>
> Most likely xhci is messed up after two device slots are in default state at
> the same time.
> This happens when both threads are in hub_port_init() have called
> hub_port_reset()
>
> The issue becomes visible when the the desc
/2/8/312
Link: https://lkml.org/lkml/2016/2/4/748
Signed-off-by: Chris Bainbridge
---
This is technically the same as the last patch version, but with a reworked
commit message to better explain the cause of the issue.
---
drivers/usb/core/hcd.c | 15 +--
drivers/usb/core/hub.c |
ait_event_timeout() does not preserve the task
state when called by tasks that are not running. We fix this by
preserving and restoring the task state in ___wait_event().
Signed-off-by: Chris Bainbridge
---
I am assuming here that wait_event_timeout() is supposed to support reentrant
calls. If not, p
On Fri, Nov 06, 2015 at 08:44:08PM +, Chris Bainbridge wrote:
> -#define ___wait_event(wq, condition, state, exclusive, ret, cmd) \
> +#define ___wait_event(wq, condition, nstate, exclusive, re
Latest Linux git has ACPI errors on Macbook IVB:
[0.333133] ACPI Error: Needed type [Reference], found [Integer]
880261656f30 (20170119/exresop-103)
[0.333141] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands
for [Store] (20170119/dswexec-461)
[0.333150] ACPI Error:
ow_bug.cgi?id=112911
Signed-off-by: Chris Bainbridge
---
drivers/acpi/acpica/evregion.c | 22 +-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 47092b4d633c..d0b02ef0effa 100644
--- a/drivers/a
On Mon, Mar 07, 2016 at 06:36:05AM +, Zheng, Lv wrote:
> Hi,
>
> First of all, why don't you respond on the kernel bugzilla?
> Posting a fix here directly without communication doesn't look like a
> constructive help but more like a destructive attack to me.
Sorry if it appears to be an atta
Hi,
I was testing something on an old server (Dell T105 opteron) and noticed
packet loss after updating the kernel from 3.10 to 4.5. The test was:
On Dell run: iperf -s
On another system: iperf3 -c dell -u -b 20M -l 1k -t 1000
This sends a 20mbit UDP stream to the Dell. It works fine normally (0
0.00]
Link: https://lkml.org/lkml/2016/2/27/79
Signed-off-by: Chris Bainbridge
---
arch/x86/kernel/cpu/microcode/intel_lib.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/microcode/i
On 17 December 2015 at 18:34, Norbert Preining wrote:
> * font corruption
> sometime sets of glyphs, or practically all glyphs disappear
> related probably to bug
> https://bugs.freedesktop.org/show_bug.cgi?id=55500
> I have sent some info there already, without response
>
> Currently my
% of boots. Fix this by locking
the bus controller instead of the bus, thus preventing simultaneous hub
init on both buses.
Fixes: 638139eb95d2 ("usb: hub: allow to process more usb hub events in
parallel")
Signed-off-by: Chris Bainbridge
---
drivers/usb/core/hcd.c | 2 +-
drivers/usb/
On Thu, Feb 04, 2016 at 04:00:51PM -0500, Alan Stern wrote:
> On Thu, 4 Feb 2016, Chris Bainbridge wrote:
>
> > The XHCI controller presents two USB buses to the system - one for USB 2
> > and one for USB 3. When only one bus is locked there is a race condition
> > during
Running task list at fail point:
[8.978405] kworker/3:0 R running task1176024 2 0x
[8.979624] Workqueue: usb_hub_wq hub_event
[8.980831] 880260613af8 880260613ac0 811247ed
8802604597c0
[8.982061] 880260608000 880260614000 000
7.976690] [] ? process_one_work+0x860/0x860
[7.976693] [] kthread+0xf6/0x150
[7.976697] [] ? kthread_worker_fn+0x310/0x310
[7.976700] [] ret_from_fork+0x3f/0x70
[7.976703] [] ? kthread_worker_fn+0x310/0x310
Link: https://lkml.org/lkml/2016/1/26/230
Signed-off-by: Chris
Booting 4.5.0-rc1 with new UBSAN checker enabled:
[3.805449]
[3.805453] UBSAN: Undefined behaviour in
./arch/x86/include/asm/atomic.h:156:2
[3.805455] signed integer overflow:
[3.805456] -1720106381
Booting 4.5.0-rc1 with new UBSAN checker enabled:
[4.556968]
[4.556972] UBSAN: Undefined behaviour in drivers/usb/core/devio.c:1517:25
[4.556975] shift exponent -1 is negative
[4.556979] CPU: 2 PID: 3
Booting 4.5.0-rc1 with new UBSAN checker enabled:
[3.859690]
[3.859694] UBSAN: Undefined behaviour in fs/btrfs/inode.c:5845:10
[3.859696] signed integer overflow:
[3.859697] 9223372036854775807 + 1 ca
4.5.0-rc1 with the new UBSAN checker:
[ 2624.978741]
[ 2624.978749] UBSAN: Undefined behaviour in
net/mac80211/rc80211_minstrel.h:47:34
[ 2624.978752] signed integer overflow:
[ 2624.978754] -32768 * 100 cannot
4.5.0-rc1 another UBSAN error:
[ 4845.229441]
[ 4845.229454] UBSAN: Undefined behaviour in net/mac80211/rx.c:924:18
[ 4845.229458] load of value 2 is not a valid value for type '_Bool'
[ 4845.229464] CPU: 1 PID: 6266
On Tue, Jan 26, 2016 at 12:03:39PM +0100, David Sterba wrote:
> On Tue, Jan 26, 2016 at 10:13:33AM +0000, Chris Bainbridge wrote:
> > Booting 4.5.0-rc1 with new UBSAN checker enabled:
> >
&g
Mounting ext4 fs on 4.5.0-rc1
[ 1176.592557]
[ 1176.592565] UBSAN: Undefined behaviour in fs/ext4/mballoc.c:1274:11
[ 1176.592567] shift exponent -1 is negative
[ 1176.592571] CPU: 3 PID: 4976 Comm: QThread Not taint
v4.5-rc2.
Macbook 2012 (IVB).
ODEBUG reports an error or two at shutdown. Apart from the ODEBUG
error(s), this bug also seems to cause some graphical corruption when
typing in Firefox text fields.
efaed9be998b5ae0afb7458e057e5f4402b43fa0 is the first bad commit
commit efaed9be998b5ae0afb7458e057
v4.5-rc2, Macbook IVB, ACPI errors on boot:
[0.618382] ACPI Error: Needed type [Reference], found [Integer]
880260240fa0 (20150930/exresop-103)
[0.618448] ACPI Error: Method parse/execution failed [\_PR.CPU0._PDC] (Node
880261acb9e0), AE_AML_OPERAND_TYPE (20150930/psparse-542)
[
Commit-ID: 3e2ae0fed2a12ef72dea787db4c25466f9d89207
Gitweb: http://git.kernel.org/tip/3e2ae0fed2a12ef72dea787db4c25466f9d89207
Author: Chris Bainbridge
AuthorDate: Fri, 7 Mar 2014 18:40:42 +0700
Committer: H. Peter Anvin
CommitDate: Thu, 20 Mar 2014 16:28:43 -0700
x86, cpu: Add
Commit-ID: 69f2366c9456d0ce784cf5aba87ee77eeadc1d5e
Gitweb: http://git.kernel.org/tip/69f2366c9456d0ce784cf5aba87ee77eeadc1d5e
Author: Chris Bainbridge
AuthorDate: Fri, 7 Mar 2014 18:40:42 +0700
Committer: H. Peter Anvin
CommitDate: Thu, 20 Mar 2014 16:31:54 -0700
x86, cpu: Add
Commit-ID: bc864af13f34d19c911f5691d87bdacc9ce109f5
Gitweb: http://git.kernel.org/tip/bc864af13f34d19c911f5691d87bdacc9ce109f5
Author: Chris Bainbridge
AuthorDate: Mon, 7 Mar 2016 11:10:00 +0100
Committer: Thomas Gleixner
CommitDate: Tue, 8 Mar 2016 09:08:44 +0100
x86/microcode/intel
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